System Administrator - Staff

Amentum•Warrenton, VA

1d•$140,000

About The Position

Purpose and Impact: In support of a challenging, critical, and rewarding program that provides integrated voice, video, and data services throughout the Information Technology lifecycle, Amentum is seeking a Staff System Administrator to join our dynamic team of IT professionals dedicated to fostering a positive and collaborative work environment. You must be a critical thinker, have a strong work ethic, and be able to work independently or as a member of a team in a dynamic environment. We value candidates who are detail-oriented while also being able to think and react quickly to emerging and unique problem sets. To be successful, you must be able to rapidly adapt and learn how to operate the front and back end of new products and processes. Work Schedule: 5 Days (Mon – Fri); 8 hrs/Day; 40 hrs/wkly Essential Responsibilities: The duties and responsibilities of the Staff System Administrator include, but are not limited to the following: Administer and maintain Windows server environments, including Active Directory, DNS, DHCP, and Group Policy Manage and support virtualization platforms such as VMware and/or Hyper-V Monitor system performance, review security logs, and apply critical updates and patches Implement robust backup strategies and disaster recover solutions Ensure systems comply with organizational policies and security standards Manage IP address allocation, subnetting, and VLAN configurations Collaborate with network engineers to diagnose and resolve LAN, WAN, and Wi-Fi connectivity issues Monitor critical network services like DNS and DHCP to ensure consistent system functionality Assist in reviewing firewall rules to support secure access to Windows servers Contribute to the planning and deployment of VPNs, remote access solutions, and network segmentation strategies Troubleshoot shared infrastructure issues, including domain name resolution and authentication failures Serve as a primary point of contact for customer issues by diagnosing, resolving, and tracking problems. Manage and maintain customer accounts, including establishment, updates, and repairs, while identifying opportunities to improve customer service processes. Provide responsive, multi-channel support (via email, phone, and remote access) to end-users, delivering timely troubleshooting and problem resolution. Ensure high-quality customer experience through consistent and effective communication. Respond to service requests and oversee the lifecycle tracking, documentation, and reporting of network systems and hardware assets. Ensure compliance with disposal protocols, including the secure destruction of sensitive materials. Utilize industry-standard tools to deliver remote support for desktop and peripheral devices, efficiently resolving technical issues while minimizing system downtime Maintain accurate records of technical incidents and service requests, escalating complex or unresolved issues according to established escalation procedures and organizational policies Administer enterprise software deployments using tools such as Microsoft Endpoint Configuration Manager (MECM), ensuring streamlined, secure, and automated application rollouts across all relevant systems Provide training and guidance to end-users to enhance technology adoption and efficiency. Regularly communicate key updates, insights, and technical recommendations to senior leadership to support informed decision-making Continuously research and evaluate emerging technologies, tools, and best practices to maintain current expertise and ensure the organization benefits from up-to-date knowledge in relevant IT domains Actively participate in cross-functional and special projects, bringing technical insight and operational support to ensure successful outcomes aligned with organizational objectives

Requirements

Must have active Top-Secret clearance with SCI or TS with the ability to acquire SCI
Minimum 4 years of relevant Information Technology Experience
Proven independence in executing projects aligned with executive directives
Demonstrated experience administering enterprise software deployments using tools such as Microsoft Endpoint Configuration Manager (MECM)
Possesses hands-on experience with enterprise technologies, including Windows Server 2019, Citrix Virtual Desktop, VMware ESXi, Active Directory, DHCP, and Service Accounts
Strong command of Group Policy for centralized management of user and computer settings across the domain
Skilled in using PowerShell to automate administrative tasks and enhance system management efficiency
Hands-on experience in VMware (vCenter, vSAN) and Nutanix Hyperconverged Infrastructure, including architecture, deployment, and the use of integrated management tools for efficient data center operations
Solid understanding of networking principles, protocols, and configuration best practices to ensure secure, reliable, and high-performing IT environments
Demonstrated experience implementing and managing data protection strategies and disaster recovery solutions to ensure business continuity and data integrity
Proven track record of identifying and recommending technology solutions that enhance customer satisfaction, support mission objectives, and drive operational improvements
Must be able to work a 40-hour work week, normally Monday through Friday
Ability to work overtime during critical peaks and be available to meet last-minute requests for overtime if needed
Ability to travel (25-40%) inside the continental United States
Familiarity with MS Office applications such as Excel, Word, Outlook, SharePoint, Project and Visio
Exceptional attention to detail; excellent verbal and written communication skills; strong critical thinking, organizational, time-management, and problem-solving skills
Ability to work both independently and as part of a team in a dynamic environment
Must possess one of the following 8140 IAT Level II or III baseline certifications: Level II certs include – CCNA Security, GISCP, GSEC, Security+ CE, SSCP Level III certs include – CASP CE, CCNP Security, CISA, CISSP (or Associate), GCED, GCIH
High School Diploma

Nice To Haves

Bachelor’s degree in IT related field
7 – 10 years of relevant experience
ITIL v4 Certification
ServiceNow experience
Experience with installation and configuration of enterprise network and systems infrastructure devices, cabling, and operational best practices
Understanding of Active Directory, MECM, DHCP, DNS, Cisco IOS, SolarWinds, and Remedy

Responsibilities

Administer and maintain Windows server environments, including Active Directory, DNS, DHCP, and Group Policy
Manage and support virtualization platforms such as VMware and/or Hyper-V
Monitor system performance, review security logs, and apply critical updates and patches
Implement robust backup strategies and disaster recover solutions
Ensure systems comply with organizational policies and security standards
Manage IP address allocation, subnetting, and VLAN configurations
Collaborate with network engineers to diagnose and resolve LAN, WAN, and Wi-Fi connectivity issues
Monitor critical network services like DNS and DHCP to ensure consistent system functionality
Assist in reviewing firewall rules to support secure access to Windows servers
Contribute to the planning and deployment of VPNs, remote access solutions, and network segmentation strategies
Troubleshoot shared infrastructure issues, including domain name resolution and authentication failures
Serve as a primary point of contact for customer issues by diagnosing, resolving, and tracking problems.
Manage and maintain customer accounts, including establishment, updates, and repairs, while identifying opportunities to improve customer service processes.
Provide responsive, multi-channel support (via email, phone, and remote access) to end-users, delivering timely troubleshooting and problem resolution.
Ensure high-quality customer experience through consistent and effective communication.
Respond to service requests and oversee the lifecycle tracking, documentation, and reporting of network systems and hardware assets.
Ensure compliance with disposal protocols, including the secure destruction of sensitive materials.
Utilize industry-standard tools to deliver remote support for desktop and peripheral devices, efficiently resolving technical issues while minimizing system downtime
Maintain accurate records of technical incidents and service requests, escalating complex or unresolved issues according to established escalation procedures and organizational policies
Administer enterprise software deployments using tools such as Microsoft Endpoint Configuration Manager (MECM), ensuring streamlined, secure, and automated application rollouts across all relevant systems
Provide training and guidance to end-users to enhance technology adoption and efficiency.
Regularly communicate key updates, insights, and technical recommendations to senior leadership to support informed decision-making
Continuously research and evaluate emerging technologies, tools, and best practices to maintain current expertise and ensure the organization benefits from up-to-date knowledge in relevant IT domains
Actively participate in cross-functional and special projects, bringing technical insight and operational support to ensure successful outcomes aligned with organizational objectives